Date of Award
2005
Document Type
Thesis
Publication Status
Version of Record
Submission Date
October 2026
Thesis/Dissertation Advisor [Chair]
Hock, Howard S.
Abstract
This study tested the hypothesis that the perception of 2-flash apparent motion (points of light are briefly presented in succession at a nearby locations) is the outcome of competition between two opposing motion directions activated by the stimulus. Experiment 1 replicated previous results obtained using 2-flash stimuli; motion was optimal for a non-zero inter-frame interval (Kolers, 1972; Wertheimer, 1912). In Experiment 2, stimuli were pared down to a single luminance change toward the background at one location, and a single luminance change away from the background at one location at another. Results were consistent with apparent motion being specified by the counter-changing luminance; motion was optimal for a non-zero inter-frame interval. A subtractive model based on counter-change stimulating opposing motion directions did not account for the results of the 2-flash experiment. An alternative model based on the combined transient responses of biphasic detectors is discussed.
Extent
52 p.
Recommended Citation
Huisman, Avia, "Competition between opposing motion directions in the perception of apparent motion: A new look at an old stimulus" (2005). Electronic Theses and Dissertations 2000 - 2009. 820.
https://digitalcommons.fau.edu/etd_general_5/820
Identifier
FADT13209
Comments
Thesis (M.A.)--Florida Atlantic University, 2005.|Thesis (M.A.)--Florida Atlantic University, 2005.